Paper-feeding apparatus for typewriters



W. C. AVERY.

PAPER FEEDING APPARATUS FOR TYPEWRITEBS.

APPLICATION min mm. 13. I920.

1,373,700. Patented Apr. 5,1921.

4 SHEETS-SHEET I.

M/VE/VTDR WC Avery.

A TTORNEYS w. c. AVERY. PAPER FEEDING APPARATUS FOR TYPEWRITERS.

APPLlCATiON FILED MAR- 13. I920.

1,373,700. Patented Apr. 5, 1921.

4 SHEETS-SHEET 2.

INVENTOR WITNE88E8 C. lI/ery.

A TTORNE Y8 W. C. AVERY.

PAPER FEEDING APPARATUS FOR TYPEWRITERS.

APPLICATION FILED mm- 13. 1920.

1,373,700. Patented Apr. 5, 1921.

4 SHEETS-SHEET 3- mmron WIT/1158858 W U. Averyv m W 1% ATTORNEYS NIJQIIIS PEYERS, "iC" UTHQ. WASHINGTON D C.

W. C. AVERY PAPER FEEDING APPARATUS FOR TYPEWRITERS.

APPLICAUON FILED MAR 13. 1920.

4 SHEETS-SHEET 4 mvmron WC. Aver ATTORNEYS Patented Apr. 5, 1921.

each other so out eline WILLIAM CHARLES AVERY,

PAPER-FEEDING APPARATUS 0F HONOLULU,

Specification of Letters Patent.

ATENT OFFICE.

TERRITORY OF HAWAII.

FOR TYPEWBITEBS.

Patented Apr. 5, 1921.

Application filed March 13, 1920. Serial No. 365,408.

To all whom it may Be it known th AVERY, a citizen of the resident of Honolulu, Territory of awan, have invented certain new and useful Improvements in Paper-Feeding Apparatus for concern lar Referring specifically to the Fig. 8 is a detail perspective view of one the locking plates used in effecting a locking of the trays.

Similar reference characters refer to sumparts in each of the several views.

drawings and Typewriters, of which the following is a particularly to Fig. 1 P designates the specification. platen of a standard form of typewriter My invention relates to apparatus for which as shown is arranged in advance of a feeding sheets of paper to a typewriter, and support 3 upon which is supported the paa purpose of my invention is the provision per fe ling apparatus embodying my invenof an apparatus of simple and efficient contion. As illustrated to advantage in Fig". 4,

ers to effect a simultaneous feeding of a pluralityof sheets of paper in such manner that are the several sheets will occupy corresponding '1.

positions on the platen of a typewriter. A further purpose of my invention is the; provision of a paper feeding apparatus hav-l ing mechanism for actuating the feed rollers either simultaneously or independently of; that an arbitrary number ofl fed to a typewriter. 'be one form of paper feeding invention, and wi 1 then point out the novel features in claims.

In the accompanying drawings: Figure 1,,is a view, showing the a. standard form of typewriter which is-arranged pne form of paper apparatus embodying iny inven lom sheets may be Twill ie-Se rram e s b y y BIG 5 platen of adj acent feeding a pair of p together in spaced parallel relation by three rods 16, the opposite ends of which latter Supported between a plurality of trays T, I stance having shown comprises a tion 19 disposed above the linear portion and connected thereto by an upwardly curved portion 20. The vided along its longitudinal flanges 18 l8 which are slotted as at 1.8. portion 19 is provided at its oppositeends with upwardly extending flanges 19 to which latter g intervals guiding fin Fig. 5.

apparatus comprises a frame including lates 15 and 15 which are secured threaded to receive retaining nuts 17 the plates 15 and 15* are 7 in the present inthree of such trays that designated by the exponents of the letter As shown in Figs. 3 an 5, each tray linear portion 18, a curved por- 7 linear portion 18 is proedges with having relatively wide portions The curved which to receive rods 21 at regular spaced 122. As shown in ngers .22 aredisposed.

with openings are secure forme the guiding.

substantially. in parallel relation to the por-. tion 19 so as to coact with the latter to effect Fig.2 is a op plan view of the apparatus "the roper guiding of the. sheets of paper shown in Fig. 1. I. from the apparatus as will be more fully de.-,. Fig. 3 is a vertical sectional view taken scribed h einafter.

on the line 3- a of Fig. 2.

1 if is atransversesectional view takelry Li nd 15 by a rod 23 nected here 0.

Fig. 3 extends through rod 23 and through which as shown in the slots 18 with its,

g, this a. longitudinal sectional view' of. op osite ends secured in the plates 15 and 116-. f the trays hown .in the prec i g 15" by nuts 24 as shown in Fig. 4 The tray i WB- f m 7 is adjustable longitudinally by virtue of the Fig. 6 is asectional view taken on the line slotsl8, and are adapted to be locked in any 7 6-6 of Ei g", 3. 1 y y i adjusted. position, by means of a pa rof 'l is aneplarged de all8 191 V lates 25 and a pair ofbolts Asshown how n'g 'fthfimannor. in w-hlch one of the in Fig. 8, each p ate 25. is provided with two gears for o'nip'fthe feed roller shafts is conopenings through one of which extends the the other, one of bolts 26. As shown in Fig. 6, each plate is locked against longitudinal movement upon the rod 23 by a. pair of nuts'27, the bolt 26 serving to lock the enlarged flange 18 to the plate 25 whereby the tray as a unit is locked against movement. Byv this arrangement, it will be seen that each tray is adjustable within the length'of theslots 18" and that by tightening the bolts 26, the looking of the tray in any adjusted position can be readily elfected.

Referring now to F igs. 2, 3 and 4, H, H H designate a plurality of shafts whichare jcurnaledin the; plates 15 and;15 so that they span the distance-"therebetween. Each shaft is provided with a plurality of feed rollers R arranged-in pairs and secured to the shaft or rotation therewith by means of sleeves 28. 'In the present instance, the feed rollers'R aref'formed of rubber and are provided at their peripheries with teeth 29 which are adapted to engage the surface of thesheets of paper for-feeding the same from the several trays. As shown in F ig. 3, provide one slxa'ft H and one set of feed rollersR for each of thetrays '1", T and T [The feed rollers R are disposed contiguous [to the curved portions 20 of the trays so that when rotated in a clockwise direction as viewed in Fig. 3', a sheet of paper "supported upon'thevtre'ys will be fed forthe fee Y shaft The wardly afid upwardly ,onto the curved portions 19.; c, act; tray isbiased by means of a coil sprin s to a position wherein the curved ortion 20 is forced upwardly toward rollers B, it being understood that as the springf29 is connected to the tray at one side or the rod '23 whichis the pivot point of the tray, the forward end of the tra is forced upwardly. As shown in Fig. 3, the springs 29 are connected at one end to the lates 15 and.15 andat their other end to th e edges of the trays. a

. he mechanism for actuating the shafts comprises in the present instance, a master gear (it fixed to a shaft .30 journaled in the plate 15.. The gear G. meshes with a pinion G fixedptothe, adjacent endotthe shaft Hi aid to asoinewhat larger pinion Gr fixed tothe ad facent end of the shaft H pinion G meshes with an' idler G which Will'i'li turn mesh W 'i the pinion ,G fixed to the end ofa shaft H. s shown in Fi 1, th shaft 30 and the shafts H, H 1, are previded their qute'r ends with cranks. for effecting, therotation' gf any oiiefof the shafts. By the arranementbf t eg sg is obvigy s. ota ion. of the. gea s. .fi'. etlected which and can ,be flin turn rotates a the several I. i Mem d r tio a sp'eds'fh si he sever eu iders oe the Sh'a ft J rotates at a greater speed than that siliiipltaneous. G fr use ,of ratidbf the shaft H while the latter in turn rotates at a speed greater than the shaft H.

eferrin now to Figs. etand 7,, it will be seen that t e gear G is capable eflfieing connected and disconnected to the shaft H by a sleeve 31 interposed between. the gear and shaft and keyed to the latter by a key 32. formed on the shattand working within a slot (not shown) formed in the sleeve. The sleeve 31 carries a key 34 Which ism elapted; to seat within a slot 35 formed in the gear G. In the normal position of the sleeve 81, the

key 34 is Within the slot 35 so that the gear G.

is locked to the shaft H for rotation. therewith. Howeverlflwhen the sleeveis moved outwardly by means, of the corresponding handle D, the key 34 is moved out of engagement with the 26ELI G so that the rotation of the gear will not effect the rotation of the shaft. As shown in Fig. 8, the handle of the crank D is formed integralwith the sleeve 31.

The pur 3058 of this arrangement is to allow of.t e rotation ofthe shaft H by means ofjthe master gear ,G orindependently thereof by means of the crank D, it .being understood that when the gear G is disengaged from the shaft, rotation of the master ear will be ineffective to rotate the shafhH The gearS'G and G? are adapted to be connected to their respective shafts throngh similar mechanism, but in order to simplify the drawings I have only shown the gear G connected in this manner. With the shafts H, H, H rotatable simulta' neously through. the master gear G r independently of each other through t eir respective cranks D,.it will be seen that the feed rollers of each shaft can be rotated in a similar manner. so as to effect a feeding of paper from one grail of, the trays.

In the operation of the ap aratus, itis ge w t relat on to th Pfi fi P. i the manner shownin .F;g'. 1 with thej delivery ends of the trays disposed above the platen. The paperto 'e fed to the platen 'ls now placedzin theseveraljtrays, the trav I conaini g the sh e E0 @11 copyof al t r, the tray T the carbon sheets, and the tray T the ori"inal "sheets. With all of the ears G", G ang G then rotates the platen "1n the usualmanner 8 operatively tot eir esp ves efist w l bes n upo re,

B seas:

reverse causing thfurther feeding of the sheets into roper position upon the platen; During this feeding operation, the springs 29 serve to bias the trays to such a position that the feed rollers will properly engage the uppermost sheet and thus feed the same from the trays? 1 Hwever, whenthe several sheets are gripped by the platen during rotation of the same, a downward pull is exerted upon the sheets causing a rocking of the tray about the rods 23 as a center so that the forward ends are moved downwardly against the tension of the springs 29. This movement of the trays causes the sheets of paper to disengage the feed rollers so that the sheets are free to be fed around the platen by the rotation of the same. After the sheets have been completely withdrawn from the trays, the springs serve to automatically return the trays to their normal positions wherein the feed rollers again engage the uppermost sheet in each tray so that upon again actuating the feed rollers, other sheets can be fed to the typewriter.

In the feeding of the several sheets to the platen P, it will be particularly noted that because of the various speeds at which the shafts H, H H are rotated, the sheet from the tray T is fed outwardly at a greater speed than the carbon sheet from the tray T while the original sheet from the tray '1 is fed at the lowest speed. As a result of this feeding operation, the outer ends of the three sheets are introduced to the platen at one and the same time so that they will occupy corresponding positions upon the platen. It will be understood that after the sheets engage the platen the feeding operation is completed by rotation of the platen that the corresponding positions of the several sheets will be maintained and independently of the feeding apparatus.

Although I have herein shown and described only one form of paper feeding apparatus embodying my invention, it is tobe understood that various modifications and changes may be made herein without departing from the spirit of the invention or the spirit and scope of the appended claims.

What I claim is 1. A paper feeding apparatus for typewriters comprising, a plurality of trays mounted for rocking movement independently of each other, feed rollers for each of the trays, means for biasing the trays toward said feed rollers, and means for actuating said rollers at different speeds.

2. A paper feeding apparatus for typewriters comprising, a plurality of trays mounted for independent rocking movement, feed rollers for each of the trays, means for biasing the trays toward said feed rollers, and means for actuating the said feed rollers simultaneously and at different speeds.

3. A paper feeding apparatus for typewriters (comprisinga; plurality af 1 trays mounted for rocking movement independently of each other, a set of feed rollers for each' of said trays, means forrotat-ing one setof rollers independently of the other sets, and means for -rotating all of said rollers simultaneously and at difierent speeds.

4. A paper feeding apparatus for typewriters comprising, a plurality of superposed trays mounted for rocking movement independently of each other and adjustable longitudinally, means for feeding sheets of paper from the trays, and means for actuating the last means.

5. A paper feeding apparatus for typewriters comprising, a plurality of superimposed trays mounted for rocking movement independently of each other, means for feeding sheets of paper from said trays, and means for biasin the trays toward said feeding means, eac of said trays comprising a linear portion, an upwardly curved portion and a downwardly curved portion, guide fingers mounted adjacent the downwardly curved portion, and flanges formed on the linear portion for the purpose described.

6. A paper feeding apparatus for typewriters comprising, a frame, rods mounted in the frame, trays fulcrumed on said rods and adjustable longitudinally, means for locking the trays in adjusted position, feed rollers for each of the trays, and means for simultaneously actuating all of said feed rollers.

7. A paper feeding apparatus for typewriters, comprising, a frame, rods fixed to the frame, trays fulcrumed on said rods and adjustable longitudinally, means for locking the trays in adjusted position. feed rollers for each of the trays, means for biasing the 1 trays toward said feed rollers, and means for actuating all of the feed rollers simultaneously or independently of each other.

8. A paper feeding apparatus for typewriters comprising, a tray, adjustable means 11 for pivotally supporting the tray for rocking movement. feed rollersarranged above the tray, means for biasing the tray toward said feed rollers, and means for actuating the feed rollers.

9. A paper feeding apparatus for typewriters comprising, a tray mounted for rocking movement and including a linear portion, an upwardly curved portion and a downwardly curved portion, feed rollers ar- 120 ranged above the tray at a point adjacent the upwardly curved portion, means for biasing the tray so that the upwardly curved ortion is moved toward the feed rollers, and means for actuating the feed rollers to effect a feed- 125 ing of a sheet of paper from the linear portion to the downwardly curved portion.

10. A paper feeding apparatus for typewriters comprising, a tray including a linear portion upon which sheets of paper are adap k o beplwed, aniiupwardly enzved portion at (mar-end ofi the linearlpertiqn and a downwardly curved portion eonneqtedm the upwaL-cllymurwed sa-1755,0117 guid fingers I 5 arranged ajacenr the "downwal'diy V curved portion, mans :fior mounting tlmxtmy 91" ng movement, feed rollers disposed above the; upwwlykmlweckpertign fliiaaid; tray, and-means: .fqrnciuafi izg flwieii: errs mieifecp a-feeding ,of: a slim; ii-mp 1" fmmzfihe almaar: portmn meross the pnrtmns and Qfini ith it my. i

WILLIAM CHARLES 

